Auxiliary heatihg  bevice



Aug. 6 1929; I

L. KERN AUXILIARY HEATING DEVICE Filed April 9, 1928 2 Sheets-Sheet 1 IN VEN TOR.

Lu f6 Mar/7 A TTORNEYS.

Aug. 6, 1929. KERN 1,723,178

AUXILIARY HEAT ING DEVICE Filed April 9, 1928 2 Sheets-Sheet 2 3/ 64 a5 3%; 4/ 37 /4 33 5 9 62 y Y I y IIH i M M 3 46 /3 A/ 53 3s 50 m 4/ I I ll 68 2 IN VEN TOR.

Auf/ //6 /7 ATTORNEYS.

Patented Aug. 6, 1929.

UNITED STATES LUTIE KERN, OF LA'WRENGE, KANSAS,

AUXILIARY Y-ZEATIHG DEVICE.

Application filed April 9,

My invention relates to smoke abaters,

and more particularly to devices of that character for use with 'hn'naces in rln-cllu11g houses and the like, the princignrl objects of the in vcntion being to co? gases pa si g 11 turn. 1 to utilize the gases for hearing purpose and to distribute the heat rescued from the gases. Further objects are to promote efficiency oi fuel and gas combustion, and reduce the proportion of uncomumed gases issuing from the chimney into the atmosphere.

In accomplishing thesa and other ob ects of my invention, I have provided improved details of structin'c the preferred forms of which are illustrated in the accompanying drawings, wherein:

Fig. 1 is a perspective view of my invention installed in operable relation with a furnace and chimney.

Fig. 2 is a detail perspective view of the device, a part being broken away to better illustrate other parts. i

Fig. 3 is an end View of the device illustrating one end wall and a connector pipe and elbows removed.

Fig. 4 is a central sectional view of a controlling damper. N

Fig. 5 is a fragmentary sectional view on the line 5-5, Fig. 2 illustrating the joint of a removable end wall.

Referring in detail to the drawings:

1 designates a basement. in which located a furnace of usual construction having pipes 3 for heated air leading to floor 4; supported by joists 5. A smoke pipe section 6 is connected into the furnace, and a similar smoke pipe section 7 is connected into a chimney 8. Ordinarily the sections 6 and. 7 of smoke pipe are continuous for conducting smoke from the furnace to the chimney. I provide, however, a heat conserver generally designated 9, and interpose it in series with the smoke pipes 6 and 7.

The heat conserver includes a rectangular.

housing 10, in which is positioned a meandering smoke conduit 11 having opposite ends 19 and 13 connected with the furnace pipe section 6 and the chimney pipe section 7 respectively, as later describes The housing comprises similar side walls 14 and 15, end walls 16 and 1.7 removably secured to the side walls, a bottom 18, a removable cover or top 19 adapted for outlet of heated air and. having an opening 20 preferably in Serial No. 263,421.

the side wall 15 to admitair for circulation 1 over the smoke conduit, all of which will be more particularly described.

The housing is supported fromthe floor of he basement by legs 21 fixed to the side waL, by means such as bolts 22 and socket members 23 having vertical openings 24in which the legs are slidablc, the legs being in selected position by thumb screws ending through threaded openings 26 in the socket members into engagen'lent with he legs. The socket members are provided with stabilizing foot portions 27 having openings 28 to receive i astening means for fixing the socket members to the floor.

Fined between the side walls 14 and 15 and in. spaced relation with the end walls 16 and 17, are similar supporting brackets 29 and 30, preferably castings, each having: vertual flanges 31 whereby it is secured to the side walls as by the bolts 22 which secure the legs to. the side walls and being provided with a large central rectangular opening 32 for a. purpose later to be described.- The open: 11g leaves relatively narrow side portions or wings ceiving openin s, 35 and 36, the series of one wing being staggered wlth reference to the series or the other wing, the staggered relation being particularly illustrated in Fig. 3. r

The openings 35 of one bracket are also 33 and 34 which are provided with vertical series of flue-repenings of the .two brackets,

ing, are sections 37 of the smokeconduit 11,"

the ends of the sections projecting through the openings of the brackets sufiiciently to receive pipe fittings such as elbows. The sections 37 are provided with lugs'38 near their ends which are adapted to pass through notches 39 in the upper margins of the bracket. openings, upon inserting the sections in the brackets. A partial turn of on, the lugs thereof being within the inner walls of the brackets, will cause the lngs'to engage the walls and prevent endwise movement ol? the section.

The conduit sections 37 areconnected at their ad acent ends by elbows 40 and transverse end pipes 41, with exceptions as noted below. The section positioned in the top most or": the openings 36 is especially designated 4'2, and is provided at one end with a manifold pipe fitting 43, communicating with the upper transverse pipe 41, and also communicating with an extension flue member 44 aligning with the section and projecting through an opening 45 in the end wall 16, the remote end of said section being connected with the outlet end 13 of the conduit which extends through an opening 46 in the opposite end wall 17 of the housing. The inner end of the lowermost of the sections 37, which ispositioned in the lower of the openings 36 of the side portions of the brackets, comprises the inlet end 12 of the meandering conduit, and extends through an opening 47 of the end wall 16 in vertical alignment with the opening 46.

The inlet 12 of the conduit is connected with an upwardly directed elbow '48, and therethrough by a pipe 49 with a box or valve chamber 50 presently described in detail, and the section extension fine 44 is connected by a pipe 51 with the chamber. The furnace pipe section 6 extends into said chamber, and a valve gate 52 is vertically sli-dable therein for alternatively closing one or another oi: the inlet elements 12 and 44, and directing smoke from the furnace into the section 42, or into the tortuous Guide flanges 59 fixed to-the similar side 1 wells 60 of the chamber are spaced from the end wall 54 to produce therewith grooves 61 in which the valve gate 52 is slidable, the valve being operably supported by arms 62 extending slidably through the top 63 of the chamber and .connected by a yoke having an eye 64 for attachmentof a chain 65 whereby remote control of the valve is provided. As illustrated in Fig. 4, the valve gate when in lower position closes the port 56 and in upper posit-ion closes the port 55. The other end wall .65 of the chamber is provided with a port 66 horizontally aligned with the direct-flow port 55, and a projection 67 for connection of the chamber with the furnace smoke pipe sect-ion 6 is provided peripherally .01: the port, the smoke entering the chamber through this pipe section and port, and the course of the smoke through the housing conduit sections being controlled by the valve gate which permits smoke to pass-into one or another of the inlet members 12 or 44. A sliding plate 68 is movable on flanges 69 on the lower edges of the chamber walls to open or close the bottom of the chamber for clean-out purposes.

The heat received by the conduit sections from gases of smoke passing therethrough, is utilized by provision of the air inlet 20 in the side wall of the housing adjacent the bottom, and the heated air outlet in the cover member. A cold air conduit 70 is preferably connected into the air inlet, and leads from a register 71 in the floor above the furnace whereby air may be drawn from the area to be warmed and circulated through the supplementary heater for return to said area through a conduit 72 connected into the heated air outlet and leading to a register 73 in the floor.

Convenient access to the interior of the housing for cleaning the pipe sections, is provided for by the removable character of the end walls of the housing, which specifically are provided with flanges 74 on their vertical edges for receiving the vertical edges of the side walls, the lower edges of the end walls being retained in position by engagement with flanges 7 5 of the bottom member 18. Hooks 76 attached to the side walls may be latched over screws 77 fixed in the flanges 73 to securely join the end and side walls. The stability of the housing is further enhanced by the means for removably supporting the cover, said cover having a eripheral flange 78 split at the corners wiiereby the end portions oi the flange may extend within the end walls of the housing while the side portions lie along the outer faces of the side walls.

Assuming a heat conserver installed according to the description given above, with a pipe leading into the valve chamber from the furnace and a pipe leading from the housing to the chimney, the normal operation of the device provides for the closing of the upper housing-inlet port, so that the smoke from the furnace will travel over the tortuous course through the housing, whereby the departing gases are restrained sufliciently for promotin consumption before discharge into the chimney, and a sub stantial area of conduit-section is traversed by the hot gases within the housing, and the heat thereof largely extracted by the conduit-sections and the cold air passing thereover through the housing. The depending connection between the valve chamber and the inlet 12 conduces to the restraining effect on the gases, while the regularly upwardly inclined course provided by'the sections oi pipe positioned in staggered bracket openings permit the gases to flow by reason of their natural levity through the housingcontained conduit sections. The air admitted into the housing circulates around the flues or conduit-sections, passing also through the openings of the bracket plates into the ends of the housing and so into contact with the elbows and transverse pipes to collect heat therefrom.

When desirable, the lower port of the chamber may be closed, and the departing products of combustion directed through the upper port into the direct-fiow housing inlet 44.- for passage by a direct horizontal or slightly upwardly inclining path through the housing to the chimney. Such disposition of the sliding valve in the valve chamber may be made when a particularly free draft is desired, for example when starting or reviving a fire. Attention is called to the structure whereby the topmost conduit sec tion constitutes the final section through which the smoke passes in either position of the valve ate, so that the smoke flow is shunted. from the direct entry to the said section to the tortuous course but reaches the said section for final egress in the chimney.

\Vhen access to the housing is desired, the

pipes connecting the housing to the valve the seating of the end walls in the flanges of the bottom member, andthe positioning of the end flanges of the cover within the end walls. The interior of the housing being thus exposed, the elbows and transverse pipes may be removed from their connection with the longitudinal sections, the lower end assembly being illustrated as disconnected in Fig. 3; since the sections are straight and may thus be opened at each end, a swab may be passed therethrough for cleaning them.

Attention is further called to the fact that the smoke passes through the housing under the conditions requiring a particularly free draft, and at no time is a supplemental control for smoke flues required or desirable, the control being confined t0 the diversion into one or the other of the housing courses, and to the usual ash-pit draft damper for inlet of air. The unobstructed passage of gases from the furnace provides for the burning of all conducted gases in the fines, whereby a relatively negligible amount of substances such as soot is deposited on the inner walls of the conduits or passes into the chimney. The absence of soot in the chimney also reduces greatly and practically eliminates the hazard of fire from such source. The retarding of rate of flow of burning and burned substances by diversion into the tortuous conduit tends to retain the substances in the furnace for complete combustion, whereby the furnace is heated to a greater degree proportionately to fuel. used. The interior of the housing, that is the air therein, is heated when the slightest combustion is occurring in the furnace and circulation of air in the from any desired source, and the heated air may be passed into any desired channels.

What I claim and desire to secure by Letters Patent is:

1. In a smoke abater, an enclosed chamber, removable end walls for the chamber, spaced brackets within the chamber, a pair of parallel series of inclining flucs supported in the brackets, end flues connecting pairs of lines for providing a continuous meandering flue, and means for controlling flow through the flue.

2. In a smoke abater, an enclosed chamber, removable end walls for the chamber, spaced brackets within the chamber, a direct conduit extending through the end walls and supported by the brackets, a pair of parallel series of reversely inclining flues supported in the brackets, end flues connecting the lines, constituting a continuous inclined meandering flue, and means for directing flow selectively through the direct conduit or meandering flue. I

3. In combination with a furnace and chimney, an enclosed chamber, a direct con .duit communicating with the furnace and chimney, an inclining tortuoiiis conduit in said chamber in shunt with the direct con duit, and means for controlling flow through said conduits including a valve housing having an inlet from the furnace, a pair of out lets connected respectively with the direct conduit and the tortuous conduit, and a valve for controlling flow through said outlets.

4. In combination with a furnace and chimney, an enclosed. chamber, a direct conduit through said chamber communicating with the furnace and chimney, an inclining tortuous conduit in shunt with the direct conduit, and means for controlling flow through said conduits, including a valve housing having an inlet from the furnace and a pair of outlets connected respectively with the direct conduit and the tortuous conduit, a valve for controlling flow through said outlets, and a removable clean-out bot tom for said housing.

5. In a smoke abater, an enclosed chamber, removable end walls for the chamber, spaced brackets within the chamber, a direct conduit extending through the end walls and supported by the brackets, a pair of series of reversely inclining flues supported in the brackets, removable end fittings for the paired series of fines for constituting a continuous inclined tortuous conduit, and means for selectively directing flow through the conduits.

, 6. In a smoke abater, an enclosed chamber, removable end Walls for the chamber, a cold air inlet near the bottom of the chamber, a Warm air outlet near the top of the chamber, spaced brackets .Within the chamber, a direct conduit extending through the end Walls and supported by the brackets, a tortuous conduit in shunt With the direct conduit and supported by the brackets, and valve means for controlling flow through said conduits. V

7 In an auxiliary heating device for interposing a smoke pipe between a furnace and a chimney, a housing having an air inlet and an air outlet, a meandering smoke conduit in the housing comprising a plurality of communicating sections, one of said sections being connected With the chimneyconnected portion of said smoke pipe, and comprising a direct flow section, an upwardly directed pipe leading from another of said sections toward the furnace-connected portion of said smoke pipe for normal inlet of smoke to the conduit, a supple mental smoke inlet connected into said direct flow section, a valve chamber connected into said furnace-connected portion of the smoke pipe and having a port in its Wall opposite to the furnace connection to receive said supplemental smoke inlet and a port vertically spaced therefrom to receive said normal inlet to the conduit, and a valve in the chamber alternately closing said ports to permitsmoke to pass from the furnace through the meandering conduit or the direct flow section.

8. In an auxiliary heating device for interposing between a furnace and a chimney, a housing having an air inlet, an air outlet, a meandering smoke conduit in the housing comprising a plurality of communicating sections, one of said sections being connected With the chimney and comprising a direct flow section, an upwardly directed pipe leading from another of said sections toward the furnace, a valve chamber communicat ing with the furnace, means connecting the chamber With said direct flow section and With the upwardly directed pipe, and a valve in the chamber controlling flow through said means and said upwardly directed pipe.

9. In a smoke abater, an enclosed chamber including removable end members having conduit receiving openings, spaced brackets Within the chamber, a direct conduit, a conduit in shunt With the direct conduit having ends mounted 1n said openings and a tortuous port-ion comprising a pair of vertical series of inclining flues supported by the brackets Within the chamber and end flues connecting pairs of fines, and means for controlling flow through said conduits.

In testimony whereof I aflix my signature LUTIE KERN. 

